Final answer:
The sentence that best paraphrases stanzas 3 and 4 is the one mentioning a man placing a bell to a warn sailors of a dangerous rock, which sounds during stormy weather.
Step-by-step explanation:
The sentence that effectively paraphrases stanzas 3 and 4 of the given passage is: "A man placed a bell on a rock to warn sailors of a dangerous rock, and in stormy weather when the rock was not visible, the bell would sound." This option encapsulates the essential information provided in the stanzas—mentioning the purpose of the bell, its placement, and its function during stormy weather when the rock poses a danger to sailors. The other options either provide too little information, are too specific to a single element of the stanzas, or do not convey the complete function and significance of the bell mentioned in the passage.